Tire-tread attachment.



' F. A. PDX. y

TIRE TBBAD ATTACHMENT. APPLICATION IfILED SEPT. 12, 1908.

y I .Im/Venier;

A To all 'whom it 'may concern:

FNK 'AL FOX, OF

NEW YORK, N`. v ,nss- IeNoR To Fox METALLIC NEW Yoan-N. Y.. A LCOE-BORATION oF NEW YORK.

TIRE BELT COMPANY, OF

TIEEQTREQLb'AT'i-mcnnmn.

Be it knwn that I, FRANK A. Fox, a citizen of- Q-the United States, residing in New of the"whe el both laterally and longitudinally 'York city, in the county of New York and State of New York, have invented certain new and useful Improvements in TireTread Attachments, of `which the following is `a specification.

. This invention relates to anti-skid .attachments for elastic tires, particularly those of` the pneumatic type; which prevent slipping `of the road.

The Object of the invention is to provide an improved forhr of device that will be -of simple construction and of comparatively lig ht' weight, yet Willxliave a very large grip mg surface for .engagement lwith the roa and at the same time will have a com-v paratively iattire engaging face.v

In the accompanyingxdrawmgs illustrating embodiments ofl my invention, Figure 1l shows a view of a portion .of the device stretched out in'a plane. Fi is a trans- 2.5

verse section through a whee tire with the 'chain attached. Fig. Sisl a plan view and Fi 4 a side elevationof one' of the attaching i lin s .ormembersL Fig. 5 isa' perspective,

view of one ofthe cross links. Fig. 6 shows .one of the links 4at one end-portion having the double hook for connection with the side 'chain. 7 is'a plan view of one of the cross members. Fig. 8 isa longitudinal section ofthe chain shown in Fi .7. i Fig. 9 is' a crossl section of oneof the lin s. Fig. 10

-s'hows'theblank from which the link of Figf is formedand Fig. 11' shows the blankl for the link ofFig. 6.

The device is'shown as `comprising two '4o' side members4 of any. desired flexible formation, preferably of chains 15 and lbetwee'nwhich are `connected the independent cross in Fi 5. These links. are articulated or".

5j `members 17 preferably equal distancesv apart Y and at right angles -with the side members. The cross member shown in Fig. .7`is formed of a number of .llnks such'as shown L hinge( together, preferably by having an eye portion 18. on one side anda hook por- 5 0.

is of a width to receive the hook 19 of an adjacent linkas shown in Fig. 7. The eye I portion ispreferably bent upward a's shown so that the-links can all lie in the same plane.

Between the attaching portionsfof these speificanfrm.zal.L ijajzten; Patent. f Application inea septemberfiagrsos. sel-n1 No. 45am( 4is formed from the Patented 2'3, reos:

. links is a loop extendingaeross the center portion of the link and having a comparatively Vfiat tread surface. "l-his loop v1s preferably formed from the blank, 20. shown'in l Fig., 1 by providing an integral tongue 21y that l1s first Ybent upward a shortdistance,

then bent across the central' portion of. the

link with its extremity bent downward to' engage the base portion of the. link, as clearly shown in Figs. 5 and 9. 'The flat tread lface of the loop is substantially par `allel with the base of the link and forms a comparatively large tread surface.

The :hook portion 1-9 is shown` as formed from a tongue 22 that is bent u ward and then across substantially paralle` with the;l base-ofthe link with its extremity bent downward to engage withthe base of the link as shown in Figs. 5 and 8,*thereby is formed Aa y.

'substantially liat tread face by thishook portion, that is preferably in th'e same plane as theV flat tread lportion 'of the transverse loop. The extremity of the tongue-x22 is formed converging at 23; and the tongue 21 may have a. recess 24 into which the extrem ityi of the hook 19 extends,1 as shownin- Fig. 8. For Athefpurpose ofsecuring these -crossl members" to the side chains, a. connecting member' 30 'is formed, comprising an eye portion 31 and a hook ort10n432. The eye portion is connected wit the hook 19 at one end of the chain while-the hook portion 32 engagesl one ofthe links of .the

side chain but at .the other end of the cross memberv insteadv of' the Aeye 18,1the'link is .provided with two hooks'26and27 as'fshown-L 1n Fig. 6, which hooks are identical with thev 5.. This link member ankv28 shown l 1 1 by iovidmg oppositely extending tongues d 33 that'are'bent, three times -upon hook 19 shown in itself, as described With relation'tothe hook 19. vWith' this construction the tongue 34j -is provided with two= recesses 35 andlinto.

which thesev hook members .project asshown.

The hook 26'en'gages "one v:of the eyes 1,8,

While tliehook 27 engages, the eye 31 Aof the connecting memb'en- Wah' this form f nadas-mba, ic'wiu'fi be seen that thereis provided a comparatively los large tread surface, formed by the-trans# verse loop 21',"and the tread surfaceV of the hook ortion '19..also the double hookportion o 4the end shown in Figlj as well as the transverse memberin. suc link'.- A'It will further be seen that the base or tire en- Lgaging face of the links is comparatively fiat and Will not serve te injurethe tire.

Vedges ofthe hook members and loop members The side will serve tov engage the roadfand effectually prevent skidding or slippage 'both laterally 'and longitudinally. Vlhen the load is put on the tire it will compress and Hatten:

out as-shown in Fig. 2,' from which itwill be seenftha't practically `the Whole tread sur-. lface of three links .at least engage the road where it is a paved street or so hard as not to-compress. But Where the road is soft the tire will sink in 4andlmake a groove or trough in which case more of the tread surface of the cross members engages the fground. v It 'will also be seen that in case of deep ruts these members Will enga e the sides of the -ruts and prevent the si eWear or cutting ofl the tire that is of far greater damage to pneumatic tires than the Wear on the boty tom tread surface.

1. A tread attachment for tires comprising side members, cross members secured et their respective ends to the side members, each cross member consisting of a series of links articulated at their ends, the links having a loop composed of part' bent up- Ward at one lateral side and across the center 125nd down on the opposite side to engage the ase.

2; A tread attachment for tires comprising side members, cross members secured at their respective ends to the side members, each cross memberconsisting of a series of links articulated at their ends, the links having 'a loop composed 0f part bent Iup ward at one lateral side and across the center and down on the opposite side to engage the base, and a link member having hook portions at opposite ends adapted to engage the eye portlon of one of said links, the links having an integral loop extending upward at one side and transversely across between said hook portions and theny down to the base on the opposite side. I

FRANK A. FOX. 

